99.36: What happens to the it 3yjhu2++hjv5h 4y e6;*a-u tgchjzinertia of an object when its velocity is doubled?

  02.14: An intrinsic property ydiz.+3kl k/ s3dku)v;pem5 f of matter is one that does not depend on the quantity of matter present. Which of the following properties is di.fzv/u 5dy3lek p)k;km3 s+ NOT an intrinsic property?

  04.16: A 20 kg boulder h3 -, ohs5u5j:dbzdcsrests on the surface of the Earth. Assume the Earth has masbjchou:5 ,s-dz s5 d3hs $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is in fre bxqm rw9/3vl-e fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass 3- bq/r9w vmxlis $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for g2h**c 2zip yian object’s velocity to increase while its acceleration ch p *iyzig*22decreases?

  00.11: A certain particle undergoes erratic motion. At every pqax/1 dpd h.)mj+ozesz.39p goint in its motion, the direction of the particle’s momedqop ..)sez d9a /h+x13mpjzgntum is ALWAYS

  17.14: A block is susp lb +i//wjwsi9ended in the air at the end of a string held by a person. The pers+i /wl jsb9w/ion pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices correctly identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the net force co,d x7 cnar7)w lqvlf )5qeb/c:nstantly zero on the object?q 7aed:f lcnxb5c7)vw,qlr) /

  13.28: An object is in free fall close to the ground. A person intervenes and sl5nhg+z )o2yelw/t:uf ows the object uniformly to rest. Which one of the l) e:/f +utg2yhzo5w nfollowing statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F20d tnh2zcrf:8 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2c t8fdrn0h2:z is

  01.07: A force of 6 Newtons and a force of 10 6o6by )dx hr7inewtons can be combine to form a resultant with a magnitude hri6)bd7y6 xoof which of the following

  10.06: Which of the following statements is most closely associated with Newthrk+at81y mb4w y.0yu ,8aajw(yh )q fon’s Thy+r fm4h 8qth,.1ywjab80 a wyky(ua)ird Law of Motion?

  95.06: The reaction force does not cancel /0/ed 1zamhzk the action force because:

  14.14: A box rests on the floor of an elevatorhza.n a/jzy 7:. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the.j/ :z7aynhz a box by the Earth?

  15.15: A skydiver falls downward through tnx/rb da) lh;55ohi6ntpaa : )o6 trl3he air with constant speed. Which one of the following choices /)l3or hn :6o6;bd l 5xpi5nra)ahtta correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The f mbhzkj7a c27z 0)fk/batterswings and hits the ball. The magnitude of the fo fa0 j)b fh27zmkzk/c7rce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On kmg- n3iv3u xpbx6+w :top of the book is a calculator, also at rest. W3p3 -uw:xbikv nm 6gx+hich one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conductinl5 pbo2- x9bke:4i ljsj8o+xn g an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, w2-+9l ispolxb 5x:4 bnojjek8hat conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same time the m9lj e,k*jr 1e rs2trud9j8zq.ass of the object was halved,then the acceleratt1.q92r err9k*zjs j ule8, jdion of the object is

  96.15: A car whose mass is 1500 kg is accelerated unifor5+tpjeb2 p/ dn xub0yz8 u,nq+mly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the car , +j/x t ey0nnu2 8bqp5zu+pdbis:

  99.05: A tractor-trailer ,hjaveq 059y btruck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, t0,vjahy b5qe 9he force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trailer +aetxb+g3d9u7go )zu trucks generally accelerate much more slowly thaub 7+x39u g+)gzoeatdt automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogjjg2xwgs.5 bgjd ,tl/9/l 4xvram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequ/wjl. /bjj5xl 9 gtdgg,v 2xs4ent motion?

  00.13: An object near the surface of the earth with a weight mdfz(jlai e7 p57 -f+9jc.r:pqnday4 of 100 newtons is acceleratamfjcpd f.+e5 4di:qlaz(- 9njpyr 77ed at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by ac/ 5:by.1el rdr3ldta constant force of 2400 N. What is the speed der: c.y t /l5ald13rbof the car 8.0 s after beginning?

  98.32: A 3.0-kg block with in5p )xe3c2ztn,cx q,a:g 8orsnitial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the :5p2zxsc3 aon q8extg,) rc,nblock slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough hori:h 8hkudl 5iffl(9 ywbsm zi(h1lc81 2zontal floor before coming to rest. l 9y(b8dl hclw5 8i:sf kmfi2hu1( 1zhThe coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizo/s qcvg3wj5)jd,v q 4pntal surface while a person pushes directly to the right on the box with a force j,w/c) vg vqqdp35j4s of 60N. The coefficient of kinetic friction between the box and the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially moving at 8 m/s accelerates uniformly to rest on a+rll cp1b+.-l oa vlg4 horizontal surface. The block travel- .+1cbaor+l l4vpll gs a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across i cjb2iky o+9(a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frictiono9jky +ib2 (ci between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of ice at a ss,bdsuf+j ox hebrk9u4 d; /-+peed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coeffici +b+kdhf, oebs-/s49uujxrd; ent of kinetic friction between the tires and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergen565 r8oa fpbqbcy stop by slamming on the car's brakes and skidding to a stop. How faro6p5 bf8a5qrb would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an aut,zw :;tfx2otzutekb7:f5.r a omobile must carefully control each of the following devices.o ;rbukft 72e,.z:t wtf xa:5z Which of these devices can cause an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rock bm lr9xt*+1oeet with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeexm*1to+rb l9 off?

  07.21: A box slides to the 4s3dol nm/r60t q;umyright across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person0sqyo6rm/dl ;n34 m tu called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of eq oxx 3fi;odj6xr-e7i6ual length. Assume that on all tracks the roller coaster carts start fro66i eorjx xxi;3o-7fdm rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of equal length. Ab9xbjxh av 9h79e p--vssume that on all tracks the roller coaster carts start from rest at the same9e7 9japhhb- xvb-x9v elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the t;y*jo38j: ctamch q,curved track from point A to point C under the influence of gravity. What8tq,my*cajj h 3o:t;c would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by x-4h* eu jnf;en8l (+apxy.sta rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction between the box and the floor if a 250 newton force on the rope is required to move the crate at a constant speed of 20 m/s as shown in t( t*.lxe sn-ne+8jyxh af;pu 4he diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N fo pwc, bcp/mbam8 8gxr,3fp-j7rce as shown. 3bc/8p7j prg - bmpmf ,w,xa8cThecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass69t-oqpz+zcsjn +fywz/d w:- with a constant speed by applying a force P. The arrows pzf sdw6-t+ywnc+qjo9z-:z/ in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a tw4avkx 0+a b30 :- nl2dzgx *2mtxgizbable. Neither is moving. Which of the followiw2ai :vgd0*a23nmxb4-k0x zltg+ bx zng statements concerning this situation is CORRECT?

  06.15: A crate of toys rbg mih69 iwa,xrcx9; :emains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What for9w b6g,i;9imr h xxc:ace is responsible for the crate’s increase in speedup the hill?